NAD L 70 Service Manual page 11

IC PIN FUNCTION (IC81 : TMP87PS71AF(OTP)-ANAM 1359DAT(MICOM)
PIN No. SYMBOL
1 OSD_H
2 REMOTE
3 RDS_CK
4 RDS_DA
5 F_MUTE
6 EVOL_DA
7 EVOL_CK
8 EVOL_CE
9 TEST
10 FUNC_A
11 FUNC_B
12 RESET
13 X-IN
14 X-OUT
15 VSS(GND)
16 BACKUP
17 MREQ
18 FREQ
19 SCKO
20 DVD_IN
21 DVD_OUT
22 CLK1
23 CS_CE
24 DATA1
25 AK_CE
26 OSD_CE
27 POWER
28 PLL_DIN
29 FUNC_CE
30 CLK2
31 DATA2
32 PLL_CE
33 +5V
34~44 VFL GRID
45~61 VFL SEGMENT
62~65 OPTION/VFL SEG.
66 -VKK
67 OPTION
68 H/P_IN
69 PROTECT
70 STEREO
71 TUNED
72 VOL_B
73 VOL_A
74 CS_INTREQ
75 CS/AK_DOUT
76~78 KEY_IN
79 CS_RST
80 EXP_CE
I/O
I OSD INPUT SENSING PORT
I REMOTE CONTROL DATA INPUT PORT
O CLK/DATA PORT FOR RDS IC(SA6579TV1)
I
O FUNCTION MUTE CONTROL OUTPUT PORT("H")
O DATA / CLK / CHIP ENABLE CONTROL PORT FOR ELECTRONIC VOL. IC(M62446AFP)
O
O
- PROGRAM SUPPLY VOLTAGE(GND CONNECTION)
I FUNCTION SELECTOR (ENCODER) CONTROL PORT
I
RESET INPUT PORT("L")
I 8MHz CRYSTAL CONNECTOR PORT
O
DEVICE GND PORT
I BACKUP MODE CONTROL PORT("L")
DVD INTERFACE
DVD INTERFACE
DVD INTERFACE
DVD INTERFACE
DVD INTERFACE
O CLK OUTPUT PORT FOR AK4586, CS49326, LC7476 & NJU3713
O CHIP ENABLE PORT FOR CS49326
O DATA OUTPUT PORT FOR AK4586, CS49326, LC74763 & NJM3713
O CHIP ENABLE PORT FOR AK4586
O CHIP ENABLE PORT FOR OSD IC(LC74763)
O POWER ON CONTROL PORT("H")
I PLL DATA INPUT PORT
O CHIP ENABLE PORT FOR FUNCTION IC(TC9163/9164)
O CLK OUTPUT PORT FOR PLL & FUNCTION IC
O DATA OUTPUT PORT FOR PLL & FUNCTION IC
O PLL CHIP ENABLE PORT
I POWER SUPPLY PORT
O VFL GRID CONTROL PORT
O VFL SEGMENT CONTROL PORT
O OPTION CONTROL / VFL SEGMENT CONTROL PORT
I VFL POWER SUPPLY PORT(-30V)
I OPTION CONTROL PORT
I HEADPHONE IN/OUT SENSING PORT
I PROTECT INPUT PORT("L")
I TUNER STEREO SENSING PORT
I TUNER TUNED SENSING PORT
I MASTER VOLUME UP/DOWN CONTROL PORT
I
I INTERRUPT REQUEST INPUT PORT FROM CS49326
I DATA INPUT PORT FROM AK4586 & CS49326
I KEY CONTROL INPUT PORT
O RESET OUTPUT PORT FOR CS493263
O CHIP ENABLE PORT FOR NJU3713
DESCRIPTION
2-12